It was not. How could it be? Cheap and fast long range transportation, the Internet, mass consumerism,interconnected financial systems...
What could possibly make you think the world was more globalised in the 1910s than 2020s?
And yes, many people said a war is impossible due to the globalisation. I guess what they missed was telling it to the people in charge ( many of whom,like the Kaiser and Tsar didn't want a war, but felt pressured and like it was inevitable).
Europe of 1914 was actually much more liberal than people tend to think. With the exception of Russia and Turkey, which required passports from visitors, you could travel passport-free around the entire Europe, settle down and work wherever you wanted.
There were many railway lines crossing the borders and cargo flows among countries were fairly heavy. The social elite was used to sending their kids abroad to study languages and spending vacations in fashionable foreign resorts.
For example borders were a lot more porous in the late 1800s - early 1900s compared to the 2020s, Ellis Island could have never happened today, when you have children from El Salvador or Guatemala kept in cages for basically doing the same thing that children from Calabria or Sicily were doing back then.
There are many countries that have always wanted to be self reliant but the powers be can't allow it. Coz it's sets a bad example that countries can exist without certain giants. I don't think they are about to allow that
The "victimized by a conspiracy" anthromorphization is also deeply wrong. They cannot be oppressed - they do not have rights.
Governments are fundamentally made of coercion. Without it they are an empty pile of words, a rules card for poker when the deck is being used for blackjack or building houses of cards. The coercion may be used to support rights like "not being murdered" but granting it rights to further human rights is like trying to increase a number by multiplying a negative number by a grearer than one positive number.
To sum it up if you apply the "corporation as a sociopath" conception governments are basically so alien to be cthulu. Corporations are at least made of people essentially, at least until the first AI run no human owner corporation is founded.
I don't see why becoming some sort of Juche state would help anyone.
If the world actually did have globalized production, the pandemic, which originated in China, would probably have hurt relatively less.